3 Bedroom Apartments for Rent near St Marys, ON (43 Rentals)

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Renting with Roommates: Realistic Expectations for Shared Lease

Sharing a lease? Learn how to set clear expectations with your roommates on routines, bills, and cleaning to ensure a successful and peaceful shared living arrangement.

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The Dorchester
Rent Specials
$2,065 - $2,095
Total Monthly Price

Total Monthly Price

Base Rent
$1,280 - $2,095
Total Monthly Price
$1,280 - $2,095
3 Bedroom Apartments Contact Us For Availability

The Dorchester

1231 Richmond StLondon, ON N6A 3L9
Pet Friendly
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  • 3D Tour
  • Smoke Free

Roommate Matching: Finding the Right Fit and Avoiding Pitfalls

When searching for a roommate, follow this list of essential steps and set clear expectations to create a solid foundation for a harmonious living situation.

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The Whitehall
Rent Specials
$1,935 - $2,145
Total Monthly Price

Total Monthly Price

Base Rent
$1,495 - $2,145
Total Monthly Price
$1,495 - $2,145
3 Bedroom Apartments Available Now

The Whitehall

1265 Richmond StLondon, ON N6A 3M1
Pet Friendly
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  • 3D Tour
  • Smoke Free
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Parkdale Place
$1,899 - $1,9493 Bedroom Apartments Available Aug 1

Parkdale Place

1201 Richmond St NLondon, ON N6A 3L3
Cost Per Sq.Ft.
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  • Utilities Included
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Renting Smart: Lease Basics Every Renter Needs

Demystify Your Rental Lease. Learn the basics about renting, deposits, and tenant/landlord responsibilities. Rent smart and avoid surprises. | Renter University at ApartmentHomeLiving.com

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property at 318 Erb St W

$1,800

Total Monthly Price

Total Monthly Price

Base Rent
$1,800
Total Monthly Price
$1,800

3 Bedroom, 1 Bath Home for Rent

Available Now

318 Erb St W

WaterlooONN2L 1W3
property at 520 Egerton St

$1,900

Total Monthly Price

Total Monthly Price

Base Rent
$1,900
Total Monthly Price
$1,900

3 Bedroom, 1 Bath Condo for Rent

Available Aug 1

520 Egerton St

LondonONN5W 3Z7
property at 295 Erb St. W

$2,150

3 Bedroom Rentals

Available Now

295 Erb St. W

WaterlooONN2L 1W4

Renters Insurance 101: What It Is, What It Covers, and Why You Need It

From theft to fire to water damage, the unexpected can happen to any renter. Discover why renters insurance is one of the smartest and most affordable investments you can make as a tenant.

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Kappele Circle
3 Bedroom Apartments

Kappele Circle

15-25 Kappele CirStratford, ON N5A 6X4
  • Utilities Included
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520 Parkside Dr
3 Bedroom Apartments

520 Parkside Dr

520 Parkside DrWaterloo, ON N2L 4X7
  • Utilities Included
  • Smoke Free

How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Finding the right apartment starts with three things: location, cost, and amenities. Get the insider perspective from a real estate professional on how to nail all three.

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Beacon Tower
3 Bedroom Apartments

Beacon Tower

25 Westmount RdWaterloo, ON N2L 5G7
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Sunnydale
3 Bedroom Apartments

Sunnydale

519-529 Sunnydale PlWaterloo, ON N2L 4S9
  • Utilities Included
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Aqui on King
3 Bedroom Apartments

Aqui on King

131 King StLondon, ON N6A 0E8
  • Utilities Included
  • Smoke Free
Showing Results 1-43, Page 1 of 1

St Marys, ON Local Guide

Largest Available St Marys and Nearby 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in St Marys, ON is found at Gordon Avenue and is 2,081 square feet priced from $2,498. 180 Mill Street has the second largest 3 Bedroom, which is sized at 1,962 square feet and currently listed start at $3,495. Here is today’s list of the largest available 3 Bedroom units in St Marys:

Apartment ListingModel NameSquare FootagePriced From
Gordon Avenue500-522 Gordon - Townhome2,081 Sq Ft$2,498
180 Mill Street3 Bedroom + 3 Bath1,962 Sq Ft$3,495
190 Cherryhill CirThree Bedroom Pent House1,830 Sq Ft$2,799
105 Cherryhill Blvd3 Bedroom Penthouse1,700 Sq Ft$2,799
120 Cherryhill PlThree Bedroom Suite1,700 Sq Ft$2,799
200 Westfield DrThree Bedroom Suite1,700 Sq Ft$2,799
Centro CampusEclipse1,606 Sq Ft$3,850
Sunnydale3 Bedroom(s) and 1.5 Bathroom(s)1,500 Sq Ft$2,650
675 Richmond Street3 Bedroom1,386 Sq Ft$2,844
Clarence Square3 Bed, 2 Bath - Dundas Penthouse1,374 Sq Ft$3,800

Cheapest Available St Marys and Nearby 3 Bedroom Apartments

As of July 15, 2026 the lowest priced 3 Bedroom apartment unit in St Marys, ON is the 3 Bedroom Promotional Price For First 7 Months* Model starting from $1,842 at 939 Western . The second most affordable St Marys 3 Bedroom is the 3 Bedroom, 2 Bathroom Model at The Whitehall starting at $1,935 . The average price for all 3 Bedroom apartments in St Marys is currently $2,642. Here is today’s list of the cheapest available 3 Bedroom options in St Marys:

Apartment ListingModel NamePriced From
939 Western3 Bedroom Promotional Price For First 7 Months*$1,842
The Whitehall3 Bedroom, 2 Bathroom$1,935
Scenic Tower3 Bedroom$2,199
Revo on King StThree Bedroom$2,300
Richmond Square3 Bedroom(s), and 2 Bathroom$2,340
Somerset Place Apartments3 Bed 1.5 Bath A$2,395
396 Queens Avenue3 Bedroom$2,399
Gordon Avenue500-522 Gordon - Townhome$2,498
180 Mill Street3 Bedroom Townhouse$2,645
Sunnydale3 Bedroom(s) and 1.5 Bathroom(s)$2,650

Real Estate and Rental Term Glossary | ApartmentHomeLiving.com Renter University

From the letter A all the way to the letter Z, the Real Estate and Rental Term Glossary from the content team at ApartmentHomeLiving.com provides our visitors and shoppers with a little clarity and helpful guidance in navigating the real estate world through definitions and explainers for the top subjects and terms that someone may come across during the leasing, buying, or selling process.

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Remember the 3 Rules of Real Estate:
Location, Location, Location!

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Frequently Asked Questions about 3 Bedroom St Marys Apartments

What is the Cheapest apartment in St Marys with 3 Bedroom?

Currently the most affordable 3 Bedroom in St Marys is at 939 Western listed at $1,842.

How much is the average rent for a 3 Bedroom St Marys Apartment?

The average rent for a 3 Bedroom Apartment in St Marys is $2,642.

What is the largest available 3 Bedroom St Marys Apartment for rent?

Today's apartment with the most square footage in St Marys is a 2,081 square feet unit starting from $2,498 at Gordon Avenue.

What is the average size for St Marys 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in St Marys is currently 1,100 sq ft.

Expert Rental Resources

The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.

Articles, How-To's, and Tips

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Renters Insurance 101: What It Is, What It Covers, and Why You Need It

Written by: Robin Stewart

Insurance seems to be a part of life. In some states, having insurance is the law, as is the case for automobile insurance. Renters are no exception.

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Apartment Occupancy Rates: Renter Attraction vs Renter Retention

Written by: Robin Stewart

There’s a tenet in marketing about client or customer attraction and retention. Studies and data have consistently shown it costs less to keep a current customer than to attract a new one.

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How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Written by: Robin Stewart

Evaluating rental properties for clients draws many parallels to house-hunting. Whether an apartment, loft, townhouse, or other rental, finding the right place means finding “home” for your client.

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Pet-Friendly Renting: Everything You Need to Know Before You Move

Written by: Christine Leonard, Esq.

For so many of us, pets are the best companions and a big part of our lives. For this reason, a pet-friendly house or apartment is often a very important - and nonnegotiable - part of a move.